Method 1 is deprecated, and method 2 is preferred. See section 8.4 of RFC3264
Brian > -----Original Message----- > From: Mark A. Stacy [mailto:[EMAIL PROTECTED] > Sent: Tuesday, November 25, 2003 11:23 AM > To: Andreas Bystr�m; Sip Implemators > Subject: Re: [Sip-implementors] Call hold questions > > > Hello Andreas, > > At SipIT 13 in Ottawa method #2 was discussed as the > preferred mechanism. > > Regards, > Mark > > ----- Original Message ----- > From: "Andreas Bystr�m" <[EMAIL PROTECTED]> > To: "Sip Implemators" <[EMAIL PROTECTED]> > Sent: Tuesday, November 25, 2003 11:20 AM > Subject: [Sip-implementors] Call hold questions > > > > I'm a bit confused regarding Call Hold service using SIP. I > have seen two > > differnet approaches to solve this: > > > > 1. Send a re-Invite with "0.0.0.0" as the IP address in the sdp data > > 2. Send a re-Invite with the parameter a=sendonly set in > the sdp data > > > > Is there some draft or RFC about this? Which one is > preferred? I guess it > is > > best to have support for both ways (at least receiveng call > hold) but when > I > > send the call hold I need to know which way to use. > > > > Do you see any pros/cons about the two different solutions? > > > > Regards, > > Andreas > > > > ____________________________________ > > Andreas Bystrom > > Computer Engineer > > > > e-horizon Streaming Technologies > > Stadshusplatsen 2, 4th floor > > Box 172 > > SE 14922 Nynashamn > > > > mail : [EMAIL PROTECTED] > > web : www.e-horizon.se > > phone : +46 8 524 201 80 > > mobile: +46 708 85 23 35 > > ____________________________________ > > > > _______________________________________________ > > Sip-implementors mailing list > > [EMAIL PROTECTED] > > http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors > > _______________________________________________ > Sip-implementors mailing list > [EMAIL PROTECTED] > http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors > _______________________________________________ Sip-implementors mailing list [EMAIL PROTECTED] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
